package top.jacktgq.itheima.netty.future.compare;

import lombok.extern.slf4j.Slf4j;

import java.util.concurrent.*;

/**
 * @Author CandyWall
 * @Date 2021/3/22--23:05
 * @Description
 */
@Slf4j
public class TestJdkFuture {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        // 1.线程池
        ExecutorService service = Executors.newFixedThreadPool(2);
        // 2.提交任务
        Future<Integer> future = service.submit(new Callable<Integer>() {
            @Override
            public Integer call() throws Exception {
                log.debug("执行计算...");
                Thread.sleep(5000);
                return 50;
            }
        });

        // 3.主线程通过future获得结果
        log.debug("等待结果...");
        Integer result = future.get();
        log.debug("结果是：{}", result);
    }
}
